Growth performance and carcass performance of Landrace and Yorkshire's from French genes
This study was conducted at Thuy Phuong Research Center from 2015 to 2019 to evaluate growth and carcass performance of Landrace and Yorkshire pigs from French genetic resources. The experiment was conducted on 1125 Landrace (365 young males, 760 gilts) and 1125 Yorkshire (365 young males, 760 gilts) over 4 generations (initial, 1, 2 and 3 generations) from 30 to 100 kg. The study results showed that average daily gain and lean meat percentage of Yorkshire pigs were higher than those of Landrace (P<0.05), however intramuscular fat and feed conversion ration were not significantly different between two breeds (P>0.05). Average daily gain, lean meat percentage and intramuscular fat increased from the initial to the third generation (P <0.05). Landrace and Yorkshire pigs from the initial to the third generation increased average daily gain by 843.35; 894.43; 914.92 and 922.60 g per day, lean percentage by 56.67; 57.75; 58.49 and 58.59%, intramuscular fat by 2.710; 2.775; 2.803 and 2.807% respectively. In contrast, feed conversion ratio decreased over generations (P<0.05); these values were 2.629; 2.555; 2.530 and 2.531 kg respectively.
